Applicants for a Particular Job,which Involves Extensive Travel in Spanish-Speaking

question 19

Multiple Choice

Applicants for a particular job,which involves extensive travel in Spanish-speaking countries,must take a proficiency test in Spanish.The sample data were obtained in a study of the relationship between the numbers of years applicants have studied Spanish and their score on the test.Use the regression analysis and summary statistics given below to find a 95% confidence interval for the average score of an applicant who has studied Spanish for 2.2 years. $$\begin{array} { l l l l c } \text { Variable } & \text { Count } & \text { Mean } & \text { StdDev } & \text { Range } \\\text { Years } & 10 & 3.5 & 0.341565 & 3 \\\text { Score } & 10 & 69.7 & 4.088058 & 41\end{array}$$ Dependent variable is: Score R-squared = 83.0%
S = 5.65138 with 10 - 2 = 8 degrees of freedom $$\begin{array} { l l l l l } \text { Variable } & \text { Coefficient } & \text { SE(Coeff) } & \text { t-ratio } & \text { P-value } \\\text { Constant } & 31.53333 & 6.360418 & 4.957745 & 0.00111 \\\text { Number of years } & 10.90476 & 1.744054 & 6.252538 & 0.000245\end{array}$$

• A)51.5 to 59.5
• B)43.1 to 70.9
• C)43.7 to 67.3
• D)48.9 to 62.2
• E)40.9 to 70.2

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Definitions:

Circular-Flow Diagram

A diagrammatic approach to displaying how financial transactions occur between businesses and family units across marketplaces.

Sector

A distinct subset of the economy, grouped based on their business activities, such as the technology sector or the healthcare sector.

Product Markets

Markets where finished goods and services are bought and sold.

Money Flow

refers to the movement of money within the economy, covering the circulation of money between individuals, businesses, and governments.